Tengo este código:

    QProcess process; process.start("powershell -Command Invoke-WebRequest -Uri http://3ds.titlekeys.gq/json_enc -OutFile titles.json"); process.waitForFinished(); if (QFile::exists("titles.json")) {     QString content;     QFile file("titles.json");     file.open(QFile::ReadOnly | QFile::Text);     content = file.readAll();     file.close();     QJsonDocument json = QJsonDocument::fromJson(content.toUtf8());     QJsonObject list = json.object();     QStringList jsontitles = list.keys();     for (QString title : jsontitles)     {         QJsonObject title_data = list[title].toObject();         QString gm9title = title_data["titleID"].toString();         if (title_data["name"].toString() != "")         {             gm9title += " ";             gm9title.append(title_data["name"].toString());         }         if (title_data["serial"].toString() != "")         {             gm9title += " ";             gm9title += title_data["serial"].toString();         }         if (title_data["region"].toString() != "")         {             gm9title += " ";             gm9title += title_data["region"].toString();         }         ui->listWidget->addItem(gm9title);         titles.push_back(gm9title);     } } 

Pero mi lista está vacía…